5. Electronics
5.4.5 Slot # 6: Input/Output Controller
This board controls the operation of the I/O Hydraulics Power and
I/O Electrical Power Boards, which together form the I/O Control
System.
Thirteen subsystems are controlled or monitored by the I/O
Control system. They are as follows:
• Air detector
• Blood leak detector
• Dialysate pressure monitor
• Bypass system and flow sensor
• Conductivity monitor
• Temperature monitor
• Line clamp
• Power fail alarm
• Rinse interlocks
• Ambient temperature
• State transition watchdog
• Watchdog timer
• Heparin pump (option) over speed monitor
5.4.6 Slot # 7: Ultrafiltration- Proportioning Controller
This board controls the operation of the UF-Proportioning Power
board.
This board is physically identical to the Blood Pump Controller
board, however the jumper must be properly positioned according
to the function it will perform. Refer to Table 5-3 and Figure 5-16
for further information.
Five subsystems are controlled or monitored by the UF-
Proportioning Control system. They are as follows:
• UF System Control
• Concentrates Proportioning Control
• Conductivity-temperature measurement
• Heater Control
• Dialysate Flow Rate Control
157-1278-912 Rev A 5-25
November 2003
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